Supplementary Fig 1 - Collagen fibrous scaffolds for sustained delivery of growth factors for meniscal tissue engineering

Supplementary Figure 1. Characterizations of heparin conjugated collagen fibrous scaffolds. (a) Schematic diagram of growth factor immobilization on heparin-conjugated collagen electrospun fibers. (b) FTIR spectra of nanofibrous scaffolds conjugated with heparin (H-COL) compared with scaffolds without heparin (COL). (c) Heparin content of H-COL scaffolds compared with COL scaffolds (Toluidine Blue assay) (n=3).